add support for linkage descriptors and create an osd menu entry for linked events

[anonymous]

The german provider Premiere and maybe other providers have special channels for PPV or sport events. On certified receivers you have an option key to reach these subevents like different camera perspectives in formula one events or the different movies on dynamic channels. This patch reads the linkage descriptors in the epg stream and writes the information to a special table. The Frontend reads the table when access the osd menu and insert an entry "subchannel" if the tuned channel is part of a linkage. The subchannel entry has subentries to each linked event and you can switch to all subevents from the menu. Note, that subentries were only created for events that have a valid epg entry in the program table.

At the moment I didn't like how to show the subevents. I'd like to have some more information per event, like start or endtime, but I don't know how to realize it. Therefore a double line menu entry is needed. Maybe the best way were to put the info in an own treemenu that fills the screen horizontal. Comments are welcome.

This patch is only tested with the german provider Premiere. Please provide me infos how it works on other providers. Maybe the store function must be restrict to a special linkage type. Premiere uses user_defined 0xb0 as type.

[Wolfgang <mythtv@…>]

backend patch for the linkage support

[Wolfgang <mythtv@…>]

frontend patch for linkage support

[Wolfgang <mythtv@…>]

sql for creating linkage table

[Wolfgang <mythtv@…>]

alternative method, the linkage has its own menu accessed by "F1" key as default

[Wolfgang <mythtv@…>]

osd link menu entries for all themes

[Wolfgang <mythtv@…>]

The last two patches are an alternative for the frontend.

Now there is an own menu for the subevents reachable by pressing F1.

[Wolfgang <mythtv@…>]

Replaced backend patch with improved version

[Wolfgang <mythtv@…>]

Added new backend patch.

Storage function only called if linkages exist and old linkages are deleted if channel event has no new one (I don't know if this can be happen, on my Provider Premier the linkages are present all the time)

[Wolfgang <mythtv@…>]

new backend version

[Wolfgang <mythtv@…>]

new frontend patch

[Wolfgang <mythtv@…>]

new sql file

[Wolfgang <mythtv@…>]

Attached new versions.

Changes:

call only one insert statement per portal chanid
sort linkages as they come from the provider

[robertm]

Closing another ticket as hopelessly old. This is not the ticket submitter's fault, but as it's an enhancement and not a bug, the only way I can think of to elicit action from someone is to closing it. It's been four years. If a dev intends to look at it, it's time. If the user wants to provide an updated patch to smack us in the face with, that's fine too.